The 35-year-old "Parks and Recreation" actor paid a visit this week to the Children's Hospital of Orange County, spending an entire day bonding with sick kids and handing out toys. In one touching moment he shared online, Pratt celebrated the good news that his new friend Emma was now cancer-free.

"After a long battle with childhood leukemia, Emma is going home cancer free!!!" he wrote on Facebook. "Atta girl! You kicked cancer's butt!!! Thank you to Children's Hospital Orange County for setting up an amazing visit and to Emma for my wonderful painting."

"If it was a big enough movie to where it would mean something to a kid who’s sick in the hospital for Peter Quill or Star-Lord to come visit them, I’ll do that," he said. "I think that’s awesome, man. That would give me real meaning for this movie, you know?"

Check out Pratt reciting lines from his role in "The LEGO Movie" with Los Angeles Children's Hospital "LEGO Master" Dylan Prunty below. Needless to say, this guy is a true guardian of the galaxy.